In the title compound, [Hg(C(6)H(5))(C(13)H(9)F(2)N(4)S)]·0.5CH(2)Cl(2), the Hg(C(6)H(5)) units are twisted out of the planes of the thio-carbazo-nate ligands by 61.49 (10) and 67.79 (11)° in the two complex mol-ecules comprising the asymmetric unit. Important geometrical parameters include Hg-C = 2.079 (4) and 2.087 (4) Å, Hg-S = 2.3869 (10) and 2.3889 (11) Å, and C-Hg-S = 166.42 (12) and 168.09 (13)°. Weak intramolecular Hg-N bonding inter-actions of 2.589 (4) and 2.626 (4) Å are observed. In the crystal, C-H⋯Cl, C-H⋯F, C-H⋯N, C-H⋯π and π-π [centroid-centroid distances = 3.648 (3) and 3.641 (3) Å] inter-actions, create parallel planes along [101].